Answer:30
Step-by-step explanation: V=1/3 Bh, 9x10=90 divide that by 3 for 30
The volume of a triangular pyramid that is 10 inches tall and has a base area of 9 square inches is 30 cubics in.
Take a triangle. This is a base.
Now take 3 triangles such that each of them is connected to the one-one side of the first triangle and when they're taken together, they form a closed object, called a triangular pyramid.
The volume of a triangular pyramid that is 10 inches tall and has a base area of 9 square inches
The volume of a triangular pyramid
V = 1/3 x B x h,
V = 1/3 x 9 x 10
V = 3 x 10
V = 30
Hence, the volume will be 30 cubics in.
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